Designation Cross-Reference

1.4462 — ASTM Equivalent

Holding a datasheet that specifies 1.4462 (EN)? The valve-grade equivalent, its properties, and certified supply of the matching ASTM grade.

What is the ASTM equivalent of 1.4462?

1.4462 is a EN designation corresponding to ASTM A182 F51 (Forged Duplex 2205 (F51)) and A182 F60 (Duplex 2205 Forged (Grade F60)) for industrial valve service. The full grade data is below - equivalence is by nominal chemistry and mechanical class, so confirm composition and heat-treat condition against the governing standard before substituting in critical service.

A182 F51

Duplex & Super Duplex

Forged Duplex 2205 (F51) - forged form.

Service temperature-40°C to +300°C

Nominal compositionCr 21.0–23.0%, Ni 4.5–6.5%, Mo 2.5–3.5%, N 0.08–0.20%. UNS S31803.

Typical service: Offshore instrument hook-up (seawater, produced water); High-chloride chemical service; NACE sour service

Also designated:1.4462 (X2CrNiMoN22-5-3) [EN]

A182 F60

Duplex & Super Duplex

Duplex 2205 Forged (Grade F60) - forged form.

Service temperature-46°C to +315°C

Nominal compositionC ≤ 0.03%, Mn ≤ 2.00%, Si ≤ 1.00%, Cr 21.00–23.00%, Ni 4.50–6.50%, Mo 2.50–3.50%, N 0.08–0.20%

Typical service: FPSO and offshore platform topside valves - seawater injection, produced water; Chemical injection pump discharge valves - biocide, corrosion inhibitor, methanol injection; Desalination high-pressure seawater feed valves (SWRO membrane inlet)

Also designated:S31803 [UNS]S32205 [UNS]1.4462 (X2CrNiMoN22-5-3) [EN]X2CrNiMoN22-5-3 [DIN]

Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

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Engineering references

A182 F51 full grade pageForged Duplex 2205 (F51)A182 F60 full grade pageDuplex 2205 Forged (Grade F60)Equivalence MatrixAll 43 grades across 7 systems Designation lookup directoryEvery foreign designation indexed